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check-test-diff

Blocks Git diffs that delete Go test files or remove more than 100 lines from them.

Updated Jan 19, 2026
Search Tags:#git#qa#diff#ci#tests#pre-merge
One-click install
npx skills add https://github.com/COLDTURNIP/longhorn-workspace --skill check-test-diff
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: check-test-diff
Source: https://github.com/COLDTURNIP/longhorn-workspace/tree/main/.opencode/skills/check-test-diff
Command: npx skills add https://github.com/COLDTURNIP/longhorn-workspace --skill check-test-diff

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill prevents risky git diffs by blocking deletions or mass removals of Go test files.

Core Features & Use Cases

  • Guards against deletions of *_test.go files in diffs.
  • Flags large deletions in test files (>100 lines) and reports violations.
  • Ideal for CI/pre-merge checks to preserve test coverage.

Quick Start

Run the script to scan the current repository for test-file changes: bash ./check_test_diff.sh

You can also specify a repository path to run the check against: bash ./check_test_diff.sh --repo /path/to/your/repo

Frequently Asked Questions about check-test-diff

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent accidental deletions of Go test files in a git pre-merge hook?▼

To prevent accidental deletions of Go test files in a pre-merge hook, you can run a script that scans git diffs for deleted *_test.go files and exits with a non-zero status to block the merge.

Can I block large removals of Go test code during CI workflows?▼

Yes, you can block large removals of Go test code during CI by flagging diffs that delete more than 100 lines from *_test.go files, emitting a clear report of the violations.

How do I check a specific repository path for destructive test file diffs?▼

To check a specific repository path for destructive test file diffs, run the check script with the --repo flag followed by your target directory path to scan for test file deletions.

What is considered a risky git diff for Go test files?▼

A risky git diff for Go test files includes any deletion of *_test.go files or mass removals exceeding 100 lines of test code, which are flagged to preserve test coverage.

Does this pre-merge check verify deletions against the current HEAD?▼

Yes, this pre-merge check verifies deletions against HEAD to accurately detect violations in the current branch's git diff before allowing a merge.

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